A sample of spammers targeting the University of Oregon

This page lists four spammers who repeatedly target
the University of Oregon,
and who ought to be blocked for those wanting not to receive
advertising from organizations which use opt-out mailing lists.

The spammers listed are chosen to be somewhat representative
of medium to high volume spammers infesting my email.
The links give more detailed information on each one,
including links to the spams received (with identifying information
removed).

MessageReach,
sender of 30 spams in less than half a year,
spamvertizing eight different organizations.
This spammer is the current highest volume spammer of a number of
what appear to be spammers for hire.

Pushpa Publishing House,
sender of 13 spams over the last three years, with increasing
frequency.
This spammer is chosen to be representative of publishers of
fifth rate scientific journals, based in third world countries
(in this case, India).
There are a number of such spammers, such as Mili Publications,
Scientific Advances Publishers, Trade Science Inc.,
and Science China.
Some send significantly more spam than the Pushpa Publishing House.

The
Principal Investigators Association,
sender of about three spams per week
during the period November 2009--March 2010.
I have email from them (posted at the link) in an implicit but very
clear manner admitting to sending unsolicited bulk email.
This spammer is my highest volume recent spammer,
but there are sure to be others,
and it has yet to beat MessageReach's record
of 14 spams in one three day period.

The Institute for Humane Studies,
sender of 37 spams over roughly the last two years.
This spammer is a high volume representative
of the "miscellaneous" category.
MessageReach and the Pushpa Publishing House are probably
spamming most of my department
(and targeting other departments on campus with different spams),
and the Principal Investigators Association is probably spamming
addresses it harvested off the NSF, NIH, and similar websites
(they publish email addresses of grant recipients),
while it is far from clear how the Institute for Humane Studies
decided to add me to their spam list.
There are other spammers like them.